package io;//: io/GetData.java
// Getting different representations from a ByteBuffer

import java.nio.*;

import static net.mindview.util.Print.*;

public class GetData {

    private static final int BSIZE = 1024;

    public static void main(String[] args) {
        ByteBuffer bb = ByteBuffer.allocate(BSIZE);
        // Allocation automatically zeroes the ByteBuffer:
        int i = 0;
        while (i++ < bb.limit()) {
            //取出一个字节
            if (bb.get() != 0) {
                print("nonzero");
            }
        }

        print("i = " + i);
        //返回初始位置
        bb.rewind();
        // Store and read a char array:
        bb.asCharBuffer().put("Howdy!");
        char c;
        while ((c = bb.getChar()) != 0) {
            //一次读一个字符
            printnb(c + " ");
        }
        print();


        bb.rewind();
        // Store and read a short:
        bb.asShortBuffer().put((short) 471142);
        print(bb.getShort());


        bb.rewind();
        // Store and read an int:
        bb.asIntBuffer().put(99471142);
        print(bb.getInt());


        bb.rewind();
        // Store and read a long:
        bb.asLongBuffer().put(99471142);
        print(bb.getLong());


        bb.rewind();
        // Store and read a float:
        bb.asFloatBuffer().put(99471142);
        print(bb.getFloat());


        bb.rewind();
        // Store and read a double:
        bb.asDoubleBuffer().put(99471142);
        print(bb.getDouble());
        bb.rewind();
    }
} /* Output:
i = 1025
H o w d y !
12390
99471142
99471142
9.9471144E7
9.9471142E7
*///:~
